公司下设销售部、大屏幕投影事业部，专门从事建筑玻璃和前表面反射镜的销售和技术服务。
Company founded large screen projection department, Special deal in sale and Technical service of front surface optical reflective mirror.
基片材料、镀前基片表面清洗工艺等对反射率也有一定影响。
Substrate material and cleaning procedure also affect reflectivity of Au film to some extent.
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